Home / 8,984.56-12,398.40-5,629.18

Finding the Fourth Proportional to 8,984.56, 12,398.40 and 5,629.18

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Solution

The fourth proportional to 8,984.56, 12,398.40 and 5,629.18 is: 7,768.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.56 : 12,398.40 = 5,629.18 : x
  2. Step 2: Convert to fraction form
    8,984.56/12,398.40 = 5,629.18/x
  3. Step 3: Cross multiply
    8,984.56x = 12,398.40 × 5,629.18
  4. Step 4: Simplify right side
    8,984.56x = 69,792,825.31
  5. Step 5: Solve for x
    x = 69,792,825.31/8,984.56
  6. Step 6: Final answer
    x = 7,768.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.